Answer:
D) 27
Step-by-step explanation:
It's a rectangle so the opposite sides are congruent to each other.
<em />
<em>Long Side:</em>
6x + 6 = 42
subtract 6 from both sides:
6x = 36
divide both sides by 6:
x = 6
<em />
<em>Short Side:</em>
5y + 5 = 30
subtract 5 from both sides:
5y = 25
divide both sides by 5:
y = 5
<em />
<em>The Equation:</em>
2x + 3y
substitute in the values:
2(6) + 3(5)
do the multiplication:
12 + 15
add the values together:
27
Answer:
y = x - 2 could not be the function equation.
Step-by-step explanation:
The function with an input of 3 has an output of 5.
So, y = 2x - 1 can be the function as y(3) = 2 × 3 - 1 = 6 - 1 = 5.
Now, y = x + 2 can also be the function as y(3) = 3 + 2 = 5
Again, y = 3x - 4 can also be the function as y(3) = 3 × 3 - 4 = 9 - 4 = 5
But y = x - 2 can not be the function as y(3) = 3 - 2 = 1 ≠ 5
Therefore, y = x - 2 could not be the function equation. (Answer)
